damn nadette you have to use the grenade why dont you just shove the grenade in the zombie mouth and kick them in to the zombie crowd, when its blows the shrapnel from the grenade and the bones with act as increased damage modifier

Correcting the first coefficient to the more correct -5 the maximum distance would be 24.4 meters with a 2.2 second flight time. The angle would be .8262 radians (47.3 degrees) up from the horzontal. Iamamathgeek but I prefer Nadette’s solution.

Ok, now thats how i would love the see the problems presented to me, i might actually be interested in solving them.
Of course, advanced math is something i never had at school couse of my learning disorder, but still, when stuff is showed like this one gets interested.
And like Nadette i would also go for the gun, or a sword, that works also.

Giving credit to Sali for attempting to find a way that appeals enough to Dette to want to learn math, but whoever wrote that question was a complete idiot

And screw ‘the maximized death radius’: you want to throw it to remove as many of the undead buggers as possible between you and them without getting yourself killed in the process, so toss it down in front of them, and leg it as fast as you can and find somewhere to duck behind when it goes off, hopefully enough of them will have passed the grenade to act as a buffer to the explosion

Assuming the grenade’s explosion to be spherical, to maximize the kill radius you’d want it off the ground, likely about 1m, to be at a height to inflict the most damage. Of course if you really want to make life interesting, throw it towards a gas main or something.
Still, A for effort in trying to make math interesting, D for failing to define important vectors.